module WebP
  module LibC
    extend FFI::Library
    # figures out the correct libc for each platform including Windows
    library = ffi_lib(FFI::Library::LIBC).first

    # Size_t not working properly on Windows
    find_type(:size_t) rescue typedef(:ulong, :size_t)

    # memory allocators
    attach_function :malloc, [:size_t], :pointer
    attach_function :free, [:pointer], :void
  
    # get a pointer to the free function
    Free = library.find_symbol('free')

    # memory movers
    attach_function :memcpy, [:pointer, :pointer, :size_t], :pointer
  end # module LibC
end